Sharing a git repository locally

gistfile1.txt

seanh creates a shared, bare repository which members of the 'clickeast'
group can read but not write, and pushes some commits into it:

	seanh@kisimul:~ % cd /
	seanh@kisimul:/ % sudo mkdir ClickEast.git
	seanh@kisimul:/ % sudo chown seanh ClickEast.git
	seanh@kisimul:/ % chgrp clickeast ClickEast.git
	seanh@kisimul:/ % chmod g+rx ClickEast.git
	seanh@kisimul:/ % chmod g+s ClickEast.git
	seanh@kisimul:/ % cd ClickEast.git
	seanh@kisimul:/ClickEast.git % git init --shared=0640 --bare
	Initialized empty shared Git repository in /ClickEast.git/
	seanh@kisimul:/ClickEast.git % cd ~/git/dice/ClickEast.git 
	seanh@kisimul:.../ClickEast.git % git push /ClickEast.git master
	Counting objects: 775, done.
	Compressing objects: 100% (387/387), done.
	Writing objects: 100% (775/775), 21.05 MiB | 19.56 MiB/s, done.
	Total 775 (delta 362), reused 775 (delta 362)
	To /ClickEast.git
	* [new branch]      master -> master
	seanh@kisimul:.../ClickEast.git % 

jamesg clones the repo:

	jamesg@kisimul:~$ git clone /ClickEast.git/
	Initialized empty Git repository in /home/jamesg/ClickEast/.git/
	jamesg@kisimul:~$ cd ClickEast/

jamesg can clone and pull from the repo, but he can't push to it:

	jamesg@kisimul:~/ClickEast$ echo 'bar' > foo
	jamesg@kisimul:~/ClickEast$ git add foo
	jamesg@kisimul:~/ClickEast$ git commit foo -m 'foobar'
	[master bdd5124] foobar
	Committer: James Garforth <jamesg@kisimul.(none)>
	1 files changed, 1 insertions(+), 0 deletions(-)
	create mode 100644 foo
	jamesg@kisimul:~/ClickEast$ git push /ClickEast.git/
	Counting objects: 4, done.
	Compressing objects: 100% (2/2), done.
	Writing objects: 100% (3/3), 276 bytes, done.
	Total 3 (delta 1), reused 0 (delta 0)
	error: insufficient permission for adding an object to repository database ./objects

	fatal: failed to write object
	error: unpack failed: unpack-objects abnormal exit
	To /ClickEast.git/
	! [remote rejected] master -> master (n/a (unpacker error))
	error: failed to push some refs to '/ClickEast.git/'

git pull works just fine for jamesg:

	jamesg@kisimul:~/ClickEast$ git pull /ClickEast.git/ master
	From /ClickEast
	* branch            master     -> FETCH_HEAD
	Already up-to-date.
	jamesg@kisimul:~/ClickEast$

jamesg needs to make his own shared bare clone of the repo and push to that, then ask seanh to pull from jamesg's shared repo into seanh's shared repo.